xfs: cross-reference the realtime bitmap
While we're scrubbing various btrees, cross-reference the records
with the other metadata.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
diff --git a/fs/xfs/libxfs/xfs_rtbitmap.c b/fs/xfs/libxfs/xfs_rtbitmap.c
index 3fb29a5..106be2d 100644
--- a/fs/xfs/libxfs/xfs_rtbitmap.c
+++ b/fs/xfs/libxfs/xfs_rtbitmap.c
@@ -1097,3 +1097,24 @@ xfs_verify_rtbno(
{
return rtbno < mp->m_sb.sb_rblocks;
}
+
+/* Is the given extent all free? */
+int
+xfs_rtalloc_extent_is_free(
+ struct xfs_mount *mp,
+ struct xfs_trans *tp,
+ xfs_rtblock_t start,
+ xfs_extlen_t len,
+ bool *is_free)
+{
+ xfs_rtblock_t end;
+ int matches;
+ int error;
+
+ error = xfs_rtcheck_range(mp, tp, start, len, 1, &end, &matches);
+ if (error)
+ return error;
+
+ *is_free = matches;
+ return 0;
+}